Evidence map›Paper›PMID 21980181›Full record

ArticleClinical journal of the American Society of Nephrology : CJASN2011

Serum erythropoietin level and mortality in kidney transplant recipients.

Miklos Z Molnar, Adam G Tabak, Ahsan Alam, Maria E Czira, Anna Rudas, Akos Ujszaszi, Gabriella Beko, Marta Novak, Kamyar Kalantar-Zadeh, Csaba P Kovesdy and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Clinical journal of the American Society of Nephrology : CJASN, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.3field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 23 citations in OpenAlex.

  1. The effect of maintaining high hemoglobin levels on long-term kidney function in kidney transplant recipients: a randomized controlled trial.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2019
    Trial
  2. Observational
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  9. Adipocytokines in renal transplant recipients.Clinical kidney journal · 2016
    Review
  10. Article
  11. Association of pre-transplant erythropoiesis-stimulating agent responsiveness with post-transplant outcomes.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2012
    Article
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 6 institutions in 5 countries.

Miklos Z MolnarInstitute of Pathophysiology, Semmelweis University, Nagyvarad ter 4, H-1089, Budapest, Hungary. molnar@medformol.hu
Adam G Tabak
Ahsan Alam
Maria E Czira
Anna Rudas
Akos Ujszaszi
Gabriella Beko
Marta Novak
Kamyar Kalantar-Zadeh
Csaba P Kovesdy
Istvan Mucsi
Institute of Behavioral Sciences · JPMcGill University Health Centre · CAHarbor–UCLA Medical Center · USSemmelweis University · HUUCLA Medical Center · USUniversity College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesPosttransplant anemia is frequently reported in kidney transplant recipients and is associated with worsened patient survival. Similar to high erythropoiesis-stimulating agent requirements, resistance to endogenous erythropoietin may be associated with worse clinical outcomes in patients with ESRD. We examined the association between serum erythropoietin levels and mortality among kidney transplant recipients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We collected sociodemographic, clinical, medical, and transplant history and laboratory data at baseline in 886 prevalent kidney transplant recipients (mean age 51 ± 13 [SD] years, 60% men, 21% diabetics). A solid-phase chemiluminescent immunometric assay was used to measure serum erythropoietin. Cox proportional hazards regression was used to model the association between baseline serum erythropoietin levels and all-cause mortality risk.

resultsDuring the median 39-month follow-up, 99 subjects died. The median serum erythropoietin level was 10.85 U/L and hemoglobin was 137 ± 16 g/L. Mortality rates were significantly higher in patients with higher erythropoietin levels (crude mortality rates in the highest to lowest erythropoietin tertiles were 51.7, 35.5, and 24.0 per 1000 patient-years, respectively [P = 0.008]). In unadjusted and also in adjusted Cox models each SD higher serum erythropoietin level significantly predicted all-cause mortality: HR(1SD increase) 1.22 and 1.28, respectively. In adjusted Cox models each SD higher serum erythropoietin/blood hemoglobin ratio also significantly predicted all-cause mortality: HR(1SD increase) 1.32. Serum erythropoietin predicted mortality in all analyzed subgroups.

conclusionsIn this sample of prevalent kidney transplant recipients, higher serum erythropoietin levels were associated with increased mortality.

Indexed as

AdultAgedErythropoietinFemaleHemoglobinsHumansKidney TransplantationLuminescent MeasurementsMaleMiddle AgedProportional Hazards ModelsErythropoietinHemoglobins

Identifiers

PMID21980181
PMCPMC3255371
OpenAlexW2146512500

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.